Siphon



A. w. SCHREINER.

' SIPHON.

APPLICATION HLED JUNE 2|, 1919.

Patented June,2 1,'1921.

, 2 SHEEIS' SHEET i 'INVENYTQR A. W. SCHRElNER.

SIPHON. APPLICATION FILE-D JUNEZI. 1919.

1,382,600. Patented June 21, 1921.

2 SHEETSSHEET 2.

war: (05.50

rim/5 (20550 INVENTOR UNITED STATES PATENT OFFICE.

ARTHUR W. SCI-IREINE-R, F BROOKLYN, NEW YORK, ASSIGNOR TO STANDARD SCIENTIFIC COMPANY, OF NEW YORK, N. Y,

SIPHON.

Specification of Letters Patent. Patented J 21 1 2 Application filed June 21, 1919, Serial No. 305,903.

To all whom it may concern Be it known that I, ARTHUR W. SOHREINER,

-. a citizen of the United States of America, re-

siding at Brooklyn in the county of Kings and the State of New York, have invented certain new and useful Improvements in Siphons, of which the following is a specification.

My invention relates to a new and useful siphoning device for the lifting of liquids from containers, carboys and the like to a point of discharge where the flow may be controlled.

The principal object of my invention is to facilitate the handling of heavy and viscous liquids, such as acids and oils, without elaborate pressuresystems or the use ofv permanent equlpment.

This isbest demonstrated by the problem of emptying or extracting at intervals, acids from the carboy for use in the chemical laboratory. The pres ent method consists either of mechanical tilting devices or of airpressure control comprising the use of such permanent equipment as pumps and piping systems. Both of these methods are entirely inaccurate and in the case of strong acids dangerous.

A further object of my invention is to provide a self-contained unit of the class de scribed which is entirely portable, positive in action, and entirelycontrolled by the operator who may be extracting the liquld from the container.

A specific feature is the semi-automatic starting means which permits the container to be in its normal erect position, which Figure 1 is a side elevation of the siphon- -ing device.

Fig. 2 is a sectional view taken longitudinally through the starting chamber.

Figs. 3, 4, 5, and 6, show consecutive operations in the cycle from starting to stopping.

In the drawings, 1 denotes the long leg of a simple siphon tube which extends upward to the bend 2, preferably formed integral therewith. Adjoining the bend 2 is the short leg of the siphon 8, which extending down-I ward enters the starting chamber 4. The open end of shortleg 3 is flared to form, a wlde. opening for receiving the liquid, and also to overhang the beveled edge 6 of a short tube 7 leading from the bottom of the startmg chamber 4. This forms an v annular orifice 8 between the tube 7 andthe end 5 of the short leg 3 of the siphon. The purpose of this orifice is more particularly pointed out in the operation.

The starting chamber 4 surrounding the end of the-short leg 3 is preferably tubular 1n shape, having a side wall 4 I The upper end of. the chamber is closed by a headil,v

through which passes the tube3, the same bemg tightly ]O1Il8Cl to prevent the escape of airunder pressure, and also to hold the tube- 3 and the chamber 4 in relative position. The other end of the chamber is closed by a head 4 having an orifice 9 therein and adjoining the short tube 7 This tube 7 may be formed integrally with the head 4 In order to elevate the head 4 slightly from the bottom of the fluid container, and thereby prevent the posslble closure of the orifice 9, short legs 10 are preferably formed integral with the head 4", projecting downward and surrounding the orifice.

If this arrangement as thus far described to start the siphon air pressure is applied to the surface of the liquid inthe. chamber 4.

A tube 11 enters the head 4* and extending upward along the leg 3 connects at its upper end to a flexible tube 12, which in turn at- 9 taches to a rubber air compression bulb 13. The bulb 13 is provided with the ordinary check valve 14 having an outwardly extending pin 15 which may be manually operated to release the pressure.

Upon squeezing the bulb 13 the valve 14 closes and the air pressure is exerted on the surface of the liquid in the chamber 4, whereupon the liquid is directed by the flared and tapered walls of orifice 8 in an upward direction directly into the tube 3. The liquid in short tube 7 has suflicient inertia to temporarily act as a rigid plug to prevent serious escape of the liquid through the orifice 9 in head 4. Once the liquid is forced to form a be immersed in the liquid it is evidentthat' column in the short leg 3 and to extend to such a height as the bend 2, the siphoning action is begun. As the long leg of the siphon 1 fills and empties the tube 3 must draw from the reservoir through the orifices 8 and 9.

When the liquid in the chamber begins to be exhausted the entiresupply comes through the orifice 9 from the carboy or container.

This siphoning action will continue until power the liquid column and break through the orifices 8 and 9 it may escape through the free liquid in the carboy to atmospheric pressure. In doing this the liquid column is destroyed at orifice 8 and the siphoning action stops. Any residual air pressure in the start 'ing chamber and bulb 13 will be destroyed by the opening of the valve 14 when the pressure 'is released from the bulb, whereupon the chamber will refill and the cycle may be begun again.

The fact that the liquid acts "itself as the valving agent is important as the valves commonly used in heavy fluids become stuck in a short period.

In operationythe starting chamber 4 is im-,

mersed in the liquid, the air valve 14 is open and the chamber fills to the hydrostatic level. See Fig. 3. The bulb is then squeezed, the valve 14 automatically closes, and the air pressure is exerted .on the surface of the liquid in chamber 4. This pressure forces the liquid in the chamber against the bathing Walls of annular orifice 8, whereupon the liquid is deflected upward into the short leg of the siphon 3. This pressure and liquid are of such amount as to completely fill the leg 3 and to cause an overflow to the long leg 1. Meanwhile the liquid in orifice 9 has temv porarily acted as a liquid plug to prevent liquid leakage in this direction, and then suddenly acts as a source or supply conducting the liquid from the carboy into the siphon.'

The flow is then continuous until the supply is exhausted or the column. is broken;v For this condition see Fig. 4 and Fig. 5. To stop the action the bulb 13 is again squeezed whereupon the air pressure is exerted directly on the column exposed at the annular orifice 8, which breaks the column to escape to orifice 9 and thence bubbles'throughthe liquid in the carboy to atmospheric pressure,

see Fig. 6. The cycle may be indefinitely re peated to exhaustion of the liquid in the carboy.

laying thus described my invention what I clalm'as new and desire to secure by Let ters Patent, is

1.: In arsiphoning device, a siphon tube having a flared intake end, a starting chamber, 7

housing and adapted to be immersed withthe said intake end; an inwardly pro ecting nozzle mounted in'the said starting chamber and having its innermost end tormed to 'coact with the flared end of the-intake tube, to'form an injecting port adapted to receive liquid from the said chamber, and means to force the liquid against the bathing walls of the her into the intake end of the siphon tubef the said nozzle being-so disposed as to form a continuous fluid path from the port in the wall of the chamber to the siphon tube; and

means to force the liquid against the said defleeting wall. 7 w

ARTHUR W. soiiREi ER, f 

